Wrapped quantum Dot/PBDT-TIPS-DTNT-DT nanostructures in high-level perovskite photovoltaics

ABSTRACT

Graphene quantum dot (GQD) and carbon quantum dot (CQD) nanoparticles and their supramolecules, including wrapped poly[bis(triiso-propylsilylethynyl) benzodithiophene-bis(decyltetradecyl-thien) naphthobisthiadiazole] (PBDT-TIPS-DTNT-DT)/GQD and wrapped PBDT-TIPS-DTNT-DT/CQD nanostructures, were prepared and employed in CH₃NH₃PbI₃ perovskite solar cells. All positive features of wrapped nano-hybrids had a synergetic effect on photovoltaic features. Owing to more mature configuration of GQD-based wrapped supramolecules, somewhat better results were obtained compared to CQD-based nanoparticles. The highest short circuit current density (J_sc), fill factor (FF), open circuit voltage (V_oc) and, consequently, power conversion efficiency (PCE) parameters were acquired for perovskite + wrapped PBDT-TIPS-DTNT-DT/GQD solar cells (20.13 mA/cm², 73%, 0.94 V and 13.81%).

UNDEFINED

KEYWORDS:

• CH₃NH₃PbI₃ solar cells
• nano-hybrid
• PBDT-TIPS-DTNT-DT
• quantum dot

Disclosure statement

No potential conflict of interest was reported by the author.

Additional information

Notes on contributors

Samira Agbolaghi

Samira Agbolaghi is an associate professor in polymer engineering at engineering faculty of Azarbaijan Shahid Madani University. My research interest is primarily in the area of long-term behavior of polymers and composites with a special focus on conductive nanostructures, nanocomposites, polymer and perovskite solar cells and bio polymers. This involves synthesizing, functionalizing, and testing of polymers and carbonic nanostructures and the use of a range of analysis techniques (DSC, TGA, FT-IR, NMR, WAXS, SAXS) for the investigation of physical and electrical properties. In addition to research activities, I teach several courses on polymers and composites to the chemical engineering students and I supervise undergraduate and postgraduate research projects across the range of engineering programs at Azarbaijan universities.